{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9663140","patent":{"patent_number":"US-9663140","title":"Electric power steering system for vehicle","assignee":null,"inventors":[],"filing_date":"2015-12-07T00:00:00.000Z","publication_date":"2017-05-30T00:00:00.000Z","cpc_codes":["B62D","B62D","G01D"],"num_claims":9,"abstract":"An electric power steering system includes a motor, rotation angle sensors, a determination unit, and a control unit. The determination unit determines whether each rotation angle sensor has a failure by one of determination methods depending on whether a situation is a first situation where one of the rotation angle sensors has a failure or a second situation where the rotation angle sensors have no failures. In the first situation, the control unit continues to control driving of the motor based on a rotation angle of the motor detected by a remaining rotation angle sensor having no failure. Only when determining, in the first situation, whether there is a failure in the remaining rotation angle sensor, the determination unit determines whether there is a failure based on whether a steering torque exhibits a specific behavior assumed to be detected when there is a failure in the remaining rotation angle sensor."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Electric power steering system for vehicle","description":"An electric power steering system includes a motor, rotation angle sensors, a determination unit, and a control unit. The determination unit determines whether each rotation angle sensor has a failure","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9663140","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9663140","citation_suggestion":"Patentable. \"Electric power steering system for vehicle\" (US-9663140). https://patentable.app/patents/US-9663140","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9663140","json":"https://patentable.app/api/llm-context/US-9663140","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:30:38.398Z"}